A tier-2 help desk technician is investigating network connectivity issues on a newly provisioned point-of-sale terminal. Diagnostics reveal that the network adapter has an assigned address of with a subnet mask of , and the link LEDs on both the workstation NIC and the network switch port are completely off. Which TWO of the following actions should the technician take FIRST to troubleshoot the issue? (Select TWO.)
- Inspect and replace the physical Ethernet patch cable connecting the terminal to the wall jack.Cevap
- Verify that the network switch port assigned to the terminal drop is enabled and in an active state.Cevap
- CReconfigure the static DNS server settings on the terminal to resolve the address to the store gateway.
- DExecute a traceroute command targeting HTTPS port 80 to verify intermediate router performance across subnets.
Cevap
The technician should inspect and replace the physical Ethernet patch cable and verify that the network switch port assigned to the terminal drop is enabled.
The completely unlit link LEDs on both the network interface card and switch port demonstrate a physical layer failure. The address is an Automatic Private IP Address (APIPA) self-assigned by the operating system when physical disconnection prevents communication with a DHCP server. Replacing the patch cable and verifying that the switch port is administratively enabled are the correct initial actions to restore physical link state.
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Physical Layer Diagnostics and APIPA Identification